128149648017 has 8 divisors (see below), whose sum is σ = 170906389824. Its totient is φ = 85413002448.

The previous prime is 128149648009. The next prime is 128149648027. The reversal of 128149648017 is 710846941821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128149648017 - 2³ = 128149648009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128149648027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5009173 + ... + 5034690.

It is an arithmetic number, because the mean of its divisors is an integer number (21363298728).

Almost surely, 2^128149648017 is an apocalyptic number.

It is an amenable number.

128149648017 is a deficient number, since it is larger than the sum of its proper divisors (42756741807).

128149648017 is a wasteful number, since it uses less digits than its factorization.

128149648017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048119.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 128149648017 in words is "one hundred twenty-eight billion, one hundred forty-nine million, six hundred forty-eight thousand, seventeen".